Short selling: selling securities that the seller does not own, with the intention of buying them back later at a lower price to profit from the difference; profitable if prices fall but risky if prices rise.
その投資家は業績悪化を見越して大量に空売りを仕掛けた。
The investor placed large short positions expecting the company's performance to worsen.
空売りは相場下落で利益を出せる一方、急騰すると損失が膨らむ可能性がある。
While short selling can profit from market declines, it may lead to large losses if prices surge.
証券会社は規制に従って空売りの報告を義務付けている場合が多い。
Brokerages often require reporting of short selling in accordance with regulations.